Background The burden of the COVID-19 pandemic in Peru has led to people seeking alternative treatments as preventives and treatment options such as medicinal plants. This study aimed to assess factors associated with the use of medicinal plants as preventive or treatment of respiratory symptom related to COVID-19 during the pandemic in Cusco, Peru. Method A web-based cross-sectional study was conducted on general public (20- to 70-year-old) from August 31 to September 20, 2020. Data were collected using a structured questionnaire via Google Forms, it consisted of an 11-item questionnaire that was developed and validated by expert judgment using Aiken’s V (Aiken’s V > 0.9). Both descriptive statistics and bivariate followed by multivariable logistic regression analyses were conducted to assess factors associated with the use of medicinal plants for COVID-19 prevention and respiratory symptom treatment during the pandemic. Prevalence ratios (PR) with 95% Confidence Interval (CI), and a P-value of 0.05 was used to determine statistical significance. Results A total of 1,747 respondents participated in the study, 80.2% reported that they used medicinal plants as preventives, while 71% reported that they used them to treat respiratory symptoms. At least, 24% of respondents used medicinal plants when presenting with two or more respiratory symptoms, while at least 11% used plants for malaise. For treatment or prevention, the multivariate analysis showed that most respondents used eucalyptus (p < 0.001 for both), ginger (p < 0.022 for both), spiked pepper (p < 0.003 for both), garlic (p = 0.023 for prevention), and chamomile (p = 0.011 for treatment). The respondents with COVID-19 (p < 0.001), at older ages (p = 0.046), and with a family member or friend who had COVID-19 (p < 0.001) used more plants for prevention. However, the respondents with technical or higher education used less plants for treatment (p < 0.001). Conclusion There was a significant use of medicinal plants for both prevention and treatment, which was associated with several population characteristics and whether respondents had COVID-19.

Background: The burden of the COVID-19 pandemic in Peru has led to people seeking alternative treatments as preventives and treatment options such as medicinal plants. This study aimed to assess factors associated with the use of medicinal plants as preventive or treatment of respiratory symptom related to COVID-19 during the pandemic in Cusco, Peru. Method: A web-based cross-sectional study was conducted on general public (20- to 70-year-old) from August 31 to September 20, 2020. Data were collected using a structured questionnaire via Google Forms, it consisted of an 11-item questionnaire that was developed and validated by expert judgment using Aiken's V (Aiken's V > 0.9). Both descriptive statistics and bivariate followed by multivariable logistic regression analyses were conducted to assess factors associated with the use of medicinal plants for COVID-19 prevention and respiratory symptom treatment during the pandemic. Prevalence ratios (PR) with 95% Confidence Interval (CI), and a P-value of 0.05 was used to determine statistical significance. Results: A total of 1,747 respondents participated in the study, 80.2% reported that they used medicinal plants as preventives, while 71% reported that they used them to treat respiratory symptoms. At least, 24% of respondents used medicinal plants when presenting with two or more respiratory symptoms, while at least 11% used plants for malaise. For treatment or prevention, the multivariate analysis showed that most respondents used eucalyptus (p < 0.001 for both), ginger (p < 0.022 for both), spiked pepper (p < 0.003 for both), garlic (p = 0.023 for prevention), and chamomile (p = 0.011 for treatment). The respondents with COVID-19 (p < 0.001), at older ages (p = 0.046), and with a family member or friend who had COVID-19 (p < 0.001) used more plants for prevention. However, the respondents with technical or higher education used less plants for treatment (p < 0.001). Conclusion: There was a significant use of medicinal plants for both prevention and treatment, which was associated with several population characteristics and whether respondents had COVID-19.

Background Cutaneous leishmaniasis (CL) is generally diagnosed by molecular methods, including PCR, using biopsy samples, skin scrapings and clinical exudates. In this study, we assessed the PCR performance for diagnosis of CL using skin of biopsy samples vs PCR of skin lesion exudate samples on filter paper and compared the diagnostic concordance of PCR using both sampling methods. Methods We assessed the PCR performance using 80 skin biopsy samples and 80 filter paper samples containing exudates from skin lesions obtained from 74 patients with clinical suspicion of CL in Cusco, Peru. Results : PCR using skin biopsy samples had superior diagnostic accuracy compared with filter paper PCR (62.5% [50/80] vs 38.7% [31/80], respectively; p˂0.005) and the diagnostic concordance between both sampling methods was ‘moderate’ (kappa coefficient=0.50, 95% CI 0.98 to 1.0). Conclusions PCR using biopsy samples remains the standard for diagnosis of CL.

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Sr. Editor. El efecto antibacteriano de los aceites esenciales (AE) de plantas contra la bacteria cariogénica como Streptococcus mutans, se ha estudiado ampliamente (1-5) y algunos componentes han sido probados en formulaciones

ResumenLa presente investigación, tuvo como objetivo identificar aquellas plantas medicinales y alimentos funcionales que la población del Cusco ubicada en los Andes del Perú, hace uso como recursos para hacer frente a la COVID-19 ya sea para la prevención o como coadyuvante al tratamiento con medicamentos. Se desarrolló una investigación descriptiva, no xperimental y transversal. La población de estudio estuvo constituida por los habitantes mayores de 20 y menores de 70 años, de ambos sexos de los distritos de Cusco, San Jerónimo, San Sebastián, Santiago y Wanchaq de la ciudad del Cusco., Perú. Se aplicó una encuesta virtual a 1747 pobladores, para lo cual se diseñó y elaboró un cuestionario con 07 ítems cuyo contenido fue validado por 10 jueces expertos utilizando la V de Aiken (V de Aiken > 0,90). Los datos recopilados fueron exportados a una base de datos en el programa Microsoft Excel. Este trabajo de investigación fue revisado y aprobado por el Comité de Bioética en Investigación de la Universidad Nacional de San Antonio Abad del Cusco. Los resultados obtenidos muestran que las plantas medicinales más utilizadas por la población estudiada fueron eucalipto (70,2%), kión (68,3%), ajo (58,8%), matico (49,6%), manzanilla (34,0%) y coca (21,6%). En relación a los alimentos funcionales que la población consume se encuentran limón (79,1%), kión (65,3%), naranja (62,2%), miel (63,5%), cebolla (52,4%), palta (40,2%), brócoli (35,8%), pescado (35,5%) y tarwi (32,5%) con fines de prevención, alivio de síntomas y coadyuvante en el tratamiento con medicamentos para la COVID-19.

Se utilizaron tres coeficientes de similitud: Simple Matching (SM), Jaccard (J) y Dice (D) para analizar la variabilidad genética mediante el uso de marcadores moleculares AFLP en 48 accesiones de Lupinus Mutabilis Sweet, 26 provenientes del Departamento de Cusco y 22 de departamentos y países distintos (Ecuador y Bolivia). A partir de matrices de similitud, se generaron dendrogramas con cada coeficiente, mediante el método UPGMA a través del software NTSYSpc versión 2.01, analizándose y comparándose entre sí, obteniendo un